HomeRoast Digest

Topic: Radiant roasting, part II (5 msgs / 85 lines)
1) From: Scott Marquardt
http://scott.marquardt.googlepages.com/radiantcoffeeroastingWith a few tweaks, I'll be mothballing the popper.
I nearly nailed my 1 watt per gram goal.
Too, too fun.

2) From: Alchemist John
Scott,  great job.  Not to put a damper on it, but as soon as you 
introduce air to blow chaff away, you are going to lose major 
heat.  How about a  screen bottom so the chaff drop in, is 
"protected" by the beans and you empty it at the end?  Lots more 
dentist like work though.
At 22:35 4/24/2006, you wrote:
John Nanci
AlChemist at large
Zen Roasting , Blending & Espresso pulling by Gestalthttp://www.chocolatealchemy.com/

3) From: Scott Marquardt
Yeah, that would work in a scaled up version.
However, I suspect that occasional blasts of air -- while neutralizing the
heat in the air in the system -- wouldn't be as bad as all that. One
definitely doesn't want the beans to therm out, but in a sense that's what'=
happening all the time in a radiant system. This is new territory for me,
and heck, I've been roasting for less than a year. And I didn't even do a
conventional drum before going to this, so in a sense I wasn't ever in
Kansas in the first place.   ;-)
I sketched an idea on the train today to leverage that test tube. Now I nee=
to find a small twin squirrel cage that's heat-impervious and ideally has
one blower slightly larger than the other.  ;-)
On 4/25/06, Alchemist John  wrote:

4) From: James House
I like your cooler setup Scott, can you explain how you did it?  Looks just
like a springform (with edges on foam?) sitting on a round fan (blowing dow=
or up?) and you probably have wire mesh between sf and fan?
On 4/25/06, Scott Marquardt  wrote:

5) From: Scott Marquardt
I think that's it, yeah. A foam ring I cut out, adhered to the fan. Some
pieces to keep the screen thing centered.
My vacuum was good inside the house, but this sucker blows chaff. That
wouldn't be a problem with popper beans, 'cause the chaff's already been
blown away. But with this little radiant drum, I presently have chaff issue=
so this fan blows chaff everywhere! Glad it's spring and I can roast outsid=
Chaff removal during the roast is my current pressing issue for this little
On 4/25/06, James House  wrote:

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